モンゴル国でのインフルエンザの疫学的特徴および疾病負荷に関する研究

Tohoku University押谷仁論

1989 Minutes of the Kings Mountain Baptist Association

The 1989 meeting of the Kings Mountain Baptist Association met at Double Springs Baptist Church and Pleasant Ridge Baptist Church in Shelby, NC. The minutes are dedicated in memory of Rev. Russell Lee Hinton. Moderator Jeff Brendle\u27s message addressed the Association\u27s issues, such as new churches, the possibility of Black Southern Baptist churches wanting to join the Association, and whether the position for an Association Church Development Staff Person will finally be established. The Director of Missions\u27 report describes emergency relief efforts for a tornado that hit Cleveland County and Hurricane Hugo.https://digitalcommons.gardner-webb.edu/kmba-minutes/1136/thumbnail.jp

1990 Minutes of the Kings Mountain Baptist Association

The 1990 meeting of the Kings Mountain Baptist Association met at Pleasant Grover Baptist Church and Elizabeth Baptist Church in Shelby, NC. The minutes are dedicated to the late Rev. Wilson Padgett and Rev. William Valentine Tarlton. Dr. Chris White, president of Gardner-Webb College, reports that Gardner-Webb has the largest number of ministerial students out of all Baptist colleges in North Carolina. Christopher Road Baptist Church was brought into full membership of the Association. The Strategy Planning Objectives were approved, including various retreats, evangelism in predominately Black communities, and educational opportunities for laity. The Bob Davis Endowment Fund was established by the Executive Board.https://digitalcommons.gardner-webb.edu/kmba-minutes/1137/thumbnail.jp

L∞L_\infty algebras for extended geometry from Borcherds superalgebras

We examine the structure of gauge transformations in extended geometry, the framework unifying double geometry, exceptional geometry, etc. This is done by giving the variations of the ghosts in a Batalin-Vilkovisky framework, or equivalently, an $L_\infty$ algebra. The $L_\infty$ brackets are given as derived brackets constructed using an underlying Borcherds superalgebra {\scr B}({\mathfrak g}_{r+1}), which is a double extension of the structure algebra ${\mathfrak g}_r$. The construction includes a set of "ancillary" ghosts. All brackets involving the infinite sequence of ghosts are given explicitly. All even brackets above the 2-brackets vanish, and the coefficients appearing in the brackets are given by Bernoulli numbers. The results are valid in the absence of ancillary transformations at ghost number 1. We present evidence that in order to go further, the underlying algebra should be the corresponding tensor hierarchy algebra.Comment: v2: 59 pp. Version published in Commun. Math. Phys. References added. Section 5 extended with a more detailed explanation of the equivalence between the BV ghost variation and the L_\infty bracket

A multitaper spectral estimator for time-series with missing data

Author Posting. © The Authors, 2019. This article is posted here by permission of The Royal Astronomical Society for personal use, not for redistribution. The definitive version was published in Geophysical Journal International 218(3), (2019): 2165-2178, doi: 10.1093/gji/ggz280.A multitaper estimator is proposed that accommodates time-series containing gaps without using any form of interpolation. In contrast with prior missing-data multitaper estimators that force standard Slepian sequences to be zero at gaps, the proposed missing-data Slepian sequences are defined only where data are present. The missing-data Slepian sequences are frequency independent, as are the eigenvalues that define the energy concentration within the resolution bandwidth, when the process bandwidth is [−1/2,1/2) for unit sampling and the sampling scheme comprises integer multiples of unity. As a consequence, one need only compute the ensuing missing-data Slepian sequences for a given sampling scheme once, and then the spectrum at an arbitrary set of frequencies can be computed using them. It is also shown that the resulting missing-data multitaper estimator can incorporate all of the optimality features (i.e. adaptive-weighting, F-test and reshaping) of the standard multitaper estimator, and can be applied to bivariate or multivariate situations in similar ways. Performance of the missing-data multitaper estimator is illustrated using length of day, seafloor pressure and Nile River low stand time-series.The length of day utilized in Section 3 are available from http://hpiers.obspm.fr. The pressure data used in Section 4 are available from https://doi.org/10.1029/2018JC014586. A Matlab function MDmwps.m to compute missing-data power spectra is available from the Mathworks file exchange website. The author thanks Jeff Park and editor F.J. Simons for thorough reviews. This work was supported by an Internal Research and Development award at WHOI, and by the Walter A. and Hope Noyes Smith Chair for Excellence in Oceanography

Tropical time series, iterated-sums signatures and quasisymmetric functions

Driven by the need for principled extraction of features from time series, we introduce the iterated-sums signature over any commutative semiring. The case of the tropical semiring is a central, and our motivating, example, as it leads to features of (real-valued) time series that are not easily available using existing signature-type objects.Comment: fix notational errors, clarify certain proof

The Democratic Republic of Congo: Taking a Stand on Security Sector Reform

Calls on the state and international community to support an effective, trained, and vetted security sector to address problems of displacement, child soldiers, gender-based violence, economic growth, and conflict minerals and improve citizens' lives